Add support for Stored Procedures in JDBC driver (Phase 1)

[gopalldb]

Description

This PR introduces phase 1 of stored procedure support in the Databricks JDBC driver.
The driver now supports executing CALL statements that invoke stored procedures on the server.

Key Capabilities

• ✅ Supports CALL syntax for stored procedure execution (e.g., CALL my_proc(?, ?)).
• ✅ Supports input parameters, which can be set using standard JDBC APIs (setInt, setString, etc.).
• ⚙️ Output parameters are currently supported only via SQL scripting (e.g., procedures returning results via SELECT statements or variables assigned inside scripts).
• 🚧 This is phase 1 — additional support for true OUT/INOUT parameters will be introduced in a future phase (full fledged support using CallableStatement.)

Testing

Tested using unit tests, will also test manually.

Additional Notes to the Reviewer